/*
 * MIT License
 *
 * Copyright (c) 2017-2019 nuls.io
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 *
 */
package io.nuls.contract.vm.instructions.control;

import io.nuls.contract.vm.Frame;
import org.objectweb.asm.tree.LabelNode;
import org.objectweb.asm.tree.TableSwitchInsnNode;

public class Tableswitch {

    public static void tableswitch(final Frame frame) {
        TableSwitchInsnNode table = frame.tableSwitchInsnNode();
        LabelNode labelNode = table.dflt;
        int index = frame.operandStack.popInt();
        int min = table.min;
        int max = table.max;
        int size = max - min + 1;
        for (int i = 0; i < size; i++) {
            if (index == (i + min)) {
                labelNode = table.labels.get(i);
                break;
            }
        }
        frame.jump(labelNode);

        //Log.opcode(frame.getCurrentOpCode());
    }

}
